<?php

/**
 * This file is part of Switcher.
 * 
 * Switcher is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * Switcher is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with Switcher. If not, see <http://www.gnu.org/licenses/>.
 * 
 * @license http://www.opensource.org/licenses/gpl-3.0.html GPL-3.0
 */

namespace switcher\filters;

/**
 * The <b>RequestFilter</b> is the base class for all the <i>filters</i> that don't
 * need to filter the Switcher output.
 *
 * @author Dri <switcher.framework@gmail.com>
 * @license http://www.opensource.org/licenses/gpl-3.0.html GPL-3.0
 * @package switcher\filters
 * @since 1.0.0
 * @see Filter
 * @see ResponseFilter
 */
abstract class RequestFilter extends \switcher\filters\Filter
{
	/**
	 * Ensures that output remains unchanged.
	 * 
	 * @param string $response The original response
	 * @return string The original response
	 */
	public final function doFilterResponse($response)
	{
		return $response;
	}
}

?>